.qulvxing{
    background-image: url("./images/qulvxingbeijing.jpg");
    width: 100%;
    height: 720px;
    background-size: 100% 100%;
}
.lvziti{
    position: absolute;
    background-color: lavender;
    width: 80%;
    margin-left: 10%;
    margin-top: 50px;
    height: 600px;
    font-size: 20px;
    opacity: 0.5;
}
.buju{
    margin-left: 5%;
    margin-right: 5%;
    margin-top: 5%;
}